Repair method after engine damage: 1. There is dirt in the lubricating oil to drain the dirty oil: replace it with a new filter. Inject clean lubricating oil into the engine. Check if the oil filter bypass valve spring is weak or damaged. Second, the air inlet has a leak to check all the gaskets and joints: if there is a leak, it should be repaired. Third, the fuel leaks into the lubricating oil, which will result in high fuel consumption and low engine oil pressure: if a leak is found, it should be repaired. Replace with new parts where needed. High Power Torch,High Power Torch Light,High Power Led Torch,High Power Led Flashlight Ningbo Alite Lighting Technology Co.,Ltd , https://www.alite-tmwt.com